Power-propelled sled.



A. ANDERSON.

POWER PROPELLED SLED.

APPLICATION FILED THE. 15, 1912.

Patented Aug". 5, 1913.

, ters indicate like parts throughout the sev- ALBERT ANDERSON, OF GLENWOOD, MINNESOTA.

POWER-PROPELLED SLED.

Application filed February 15, 1912.

To all whom it may 0011 cam Be 1t known that I, .\LIHCRT ibznnasoiv, a

citizen of the United States, residing at tlrlenwood, inthe county of Pope and State of Minnesota, have invented certain new and useful Improvements in Power-Propelled Sleds; and I. do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

. My invention has for its object to provide an improved power propelled sled, and to tliis'end it consists of the novel devices and coi'nbinations of devices hereinafter described and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein like characeral views.

eferring to the drawings, Figure 1 is a side elevation of the improved power propelled sled with some parts broken away and with some of the exposed parts shown in section; Fig. 2 is a view, on an enlarged scale, in transverse vertical section taken on the line of Fig. 1: and Fig. 3 is a detail view in plan showing the intermediate portion of the parts illustrated in Fig. 2.

The numerals l and 2 indicate, respectively and as entireties, the body of an automobile and an explosive engine. Front and rear bobs 3 and 4, respectively, support a supplemental skeleton frame 5 on which the body 1 rests. A front bearing bracket 6 and a pair of rear bearing brackets 7 depend from and are rigidly secured to the under side of the supplemental frame 5. The front bracket 6 is located intern'icdiately between the side portions of/the supplemental frame 5, and the front bob 3 is pivotally attached thereto at 8. In actual practice, suitable steering mechanism for steering the front bob 3 will be provided, but for the purpose of this case, it is not thought necessary to illustrate the same. The; runners of the rbar bob 1 are comparatively short and upwardly extended bearing brackets 9 are rigidly secured to the rear ends thereof. The two bearing brackets 7 are secured on opposite sides of the supplemental frame 5. A transversely and hori Zontally extended shaft 10 is supported in the lower end portions of the brackets 7 The bearing brackets 9 are loosely ournaled on the outer ends of the shaft 10 Specification of Letters Patent.

Patented Aug. 55,1913.

Serial No. 877,773.

and connect the runners of the rear bob 4 to the supplemental frame with freedom f r oscillatory movements in vertical planes.

Bearings 11 are rigidly secured one to the front end portion of each runner of the rear bob 4 and are axially alined with longitudinally extended bearings 12 formed in the bearing brackets 9. Propeller shafts 13 and 1.3" are attached to the runners of the rear bob 4. These propeller shafts extend rearward from the bob 4: and have their forward ends journaled in the bearings 11 and 12. Vertically movable and depending bearing rods lt have their upper ends slidably mounted in the supplemental frame 5. The rear ends of the propeller shafts 13 and 13 are loosely journaled in. the lower ends oft-he bearing rods 14. Coiled springs 15 are compressed between. the supplemental frame 5 and fixed collars 16 on the bearing rods 14 and yieldingly press the rear ends of the propeller shafts 13 and 13 downward. Ground engaging spiralpropelling blades 17 are axially secured to the propeller shaft 13 and 13 between the bearings 12 and 14.

The driving shaft 18 of the engine 2 extends horizontally rearward from the engine and is journaled in a pair of laterally spaced and transversely extended'bearing braces 19 rigidly secured to the side members of the supplemental frame 5. Keyed to the shaft 18 is a spur gear 20 that meshes with a spur gear 21 keyed to a counter shaft22 journaled' in the bearing braces 19. A

sprocket chain 23 runs over a pair of alined The propeller shafts 13 and 13", together with their propeller blades 17,. are interchangeable and they may be substituted one for the other in case it is found desirable to drive the propeller blades in a reverse direction from that shown in the drawings.

Suitable means may also be provided for raising and lowering the rear ends of the propeller (shafts from the front seat of the vehicle.

What I claim is 1. The combination with a vehicle body, a power propelled rear sled connected thereto With freedom for vertical oscillatory movement, and a front sled connected thereto for steering movement, of a pair of spiral road engaging propeller blades having driving shafts rotatively mounted in fixed bearas described.

ings on the runners of said rear sled, and means for rotating said shafts, substantially 2. The combination with a vehicle body, a power propelled rear sled connected thereto with freedom for verticaloscillatory movement, and a front sled connected thereto for steering movement, of a pair of hori- Y propeller blades secured to the rea'r ends of '20- said shafts, bearings on said body forthe rear ends of saidshafts, andvyielding means -for.holdi1jig said propeller-blades in engagement with the road with freedom for vertical oscillatory movement vvith'said rear sled, 25

substantially as described.

In testimony whereof I aflixi'ny signature in presence of two witnesses.

ALBERT ANDERSON. Witnesses: v

' gUSTAV NELSON,

" ARL N. NELSON. 

